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How do I show explanation in Geography? E/D Describe C/B Explain A/A* Explain several distinct points.

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Presentation on theme: "How do I show explanation in Geography? E/D Describe C/B Explain A/A* Explain several distinct points."— Presentation transcript:

1 How do I show explanation in Geography? E/D Describe C/B Explain A/A* Explain several distinct points

2 Explain the formation of cliffs and wave-cut platforms [4 marks] The cliff is eroded at the bottom by corrasion. This is pebbles carried by the sea which are thrown against the cliff by the breaking wave, knocking off parts of the cliff. In time a wave-cut platform is formed. The sea continues to attack the cliff in this way and the cliff retreats. The remains of the cliff, now below the sea t high tide, form a rocky wave-cut platform. The platform will also contain the boulders which have fallen from the cliff. As the width of the platform increases the power of the sea decreases, because it has further to travel to reach the cliff and the water is shallower causing more friction. Above the wave-cut notch an overhang develops. As the notch becomes larger the overhang will become unstable. This is because of its weight and the lack of support. In time the overhang will fall due to the pull of gravity. 1.Highlight the explanation 2.List words that sign-post explanation to the examiner 1.Highlight the explanation 2.List words that sign-post explanation to the examiner

3 Explain the formation of cliffs and wave-cut platforms [4 marks] The cliff is eroded at the bottom by corrasion. This is pebbles carried by the sea which are thrown against the cliff by the breaking wave, knocking off parts of the cliff. In time a wave-cut platform is formed. The sea continues to attack the cliff in this way and the cliff retreats. The remains of the cliff, now below the sea t high tide, form a rocky wave- cut platform. The platform will also contain the boulders which have fallen from the cliff. As the width of the platform increases the power of the sea decreases, because it has further to travel to reach the cliff and the water is shallower causing more friction. Above the wave-cut notch an overhang develops. As the notch becomes larger the overhang will become unstable. This is because of its weight and the lack of support. In time the overhang will fall due to the pull of gravity.

4 Explain the formation of stumps A stump is formed by the action of the sea and weathering. The sea erodes a crack using hydraulic action and makes it bigger, forming a cave. If it is a headland, caves will form on either side. Eventually the backs of the caves meet and an arch is formed. In times the arch will collapse forming a stack. The stack will then collapse forming a stump.

5 Explain the formation of stumps A stump is formed by the action of the sea and weathering. The sea erodes a crack using hydraulic action and makes it bigger, forming a cave. If it is a headland, caves will form on either side. Eventually the backs of the caves meet and an arch is formed. In times the arch will collapse forming a stack. The stack will then collapse forming a stump. Improve on this answer to show explanation

6 Explain the formation of stumps A stump is formed by the action of the sea and weathering. The sea erodes a crack using hydraulic action and makes it bigger, forming a cave. If it is a headland, caves will form on either side. Eventually the backs of the caves meet and an arch is formed. In times the arch will collapse forming a stack. The stack will then collapse forming a stump. Highlight or underline your explanation in a different colour

7 Remember... Explain the sequence involved Explain the processes involved E/D Describe C/B Explain A/A* Explain several distinct points

8 Task Explain the formation of headlands and bays E/D Describe C/B Explain A/A* Explain several distinct points Highlight or underline your explanation in a different colour


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